An atom has mass number 23 and atomic number 11. What is the number of electrons in this atom?

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Solution

Sodium has mass number of 23 and its atomic number is 11.

Since in a neutral atom, number of electrons = number of protons=atomic number

Therefore, number of electrons = 11

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An atom has mass number 23 and atomic number 11. What is the number of electrons in this atom?

Sodium has mass number of 23 and its atomic number is 11. Since in a neutral atom, number of electrons = number of protons=atomic number Therefore, number of electrons = 11

Sodium has mass number of 23 and its atomic number is 11.

Since in a neutral atom, number of electrons = number of protons=atomic number

Therefore, number of electrons = 11